Parameter optimization and characteristic analysis of a polymer microring resonant wavelength multiplexer

Novel formulas of transmission functions are presented, some parameters are optimized, and transmission characteristics are analyzed for a polymer microring resonant wavelength multiplexer around the central wavelength of 1.55μm with the wavelength spacing of 5.6nm and with eight vertical output channels. The computed results show that the designed device possesses some excellent features including the 3dB bandwidth of 0.25μm, weaker background light of 3.8×10−4, smaller inserted loss of less than 0.6dB, and lower crosstalk below −20dB for every vertical output channel.